All Oracle Error CodesOracle DBA Forum

LFI-00123:

Cannot access file Sequentially and Randomly.
Cause: Both the LFILFA_SEQ (sequential) and LFILFA_RANDOM (random) flags were specified during the file object creation. This is not allowed. Only one of the two may be specified.
Action: Choose how you wish to access the file. If you choose random you can still access sequentially by just not using the repositioning functions.